Contrast Adjustment - Sanyo PLC-WTC500L Service Manual

Optical Adjustment

3. Contrast adjustment

1
Select the internal test pattern signal "All black" from the projector's menu "Menu -> Setting -> Test pattern".
2
A
Loosen 2 screws on the glass holders for G-panel.
3
B
Turn the lever of polarized glass to obtain the darkest brightness and proper black color uniformity on the
screen.
4
c
Turn the lever of optical filter to obtain the darkest brightness and proper black color uniformity on the screen.
5
A
Tighten the screws to fix the glass holder.
Repeat steps 2 to 5 for remaining R and B contrast adjustment.
This adjustment should be taken in order of G-panel, R-panel and B-panel.
This adjustment should be taken in the dark room to adjust precisely.
Lever B
(Polarized glass)
red
A
A
A
Green
-52-
Lever c
(optical filer)
A
Blue
A
A